ELECTRICAL LEVEL 1 EXAM QUESTIONS

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ELECTRICAL LEVEL 1 EXAM QUESTIONS

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -36 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: In order to calculate the current flowing in a circuit, you would multiply voltage by resistance.

Answer:

False Question 2: The formula for calculating the total resistance in a series circuit with three resistors is

Answer:

Rt= R1 + R2 + R3 Question 3: Asbestos was banned in _______; therefore, you must assume that any facility constructed before _______ has asbestos in it.

Answer:

1978;1980

Question 4: Class 00 rubber gloves are used when working with voltages less than _______.

Answer:

500V

Question 5: A 242-ohm resistor is in parallel with a 180-ohm resistor, and a 420-ohm resistor is in series with the combination in a 27-volt circuit. A current of 22mA flows through the 242-ohm resistor. The current throuth the 180-ohm resistor is ____.

Answer:

29.6mA Question 6: You may throw vapor lamps out with regular trash as long as you wrap them carefully to avoid breakage. (T or F)

Answer:

False Question 7: Which of these statements correctly describes a double-insulated power tool?

Answer:

It can be safely used in place of a grounded tool.Question 8: Find the total resistance in a series circuit with three resistances of 10ohms, 20ohms and 30ohms

Answer:

60 ohms Question 9: Kirchhoff's voltage law states that the algebraic sum of the voltages around any closed current path is ____.

Answer:

Zero Question 10: The color band that represents tolerance on a resistor is the ________.

Answer:

4th band Question 11: What word or phrase best describes the NEC requirements for the installation of electrical systems?

Answer:

Complete

Question 12: An electrical circuit contains, at minimum, a(n)

Answer:

voltage source, load, and conductors.Question 13: What are the minimum and maximum distances (in inches) that a scaffold plank can extend beyond its end support?

Answer:

6;12 Question 14: The formula for calculating the total resistance in a parallel circuit with three resistors is ______

Answer:

Rt = 1/( (1/R1)+(1/R2)+(1/R3) Question 15: A resistor of 32-ohms is in parallel with a resistor of 36-ohms, and a 54-ohm resistor is in series with the pair. When 350V is applied to the combination, the current through the 54-ohm resistor is ____.

Answer:

4.93 A

Question 16: An important use of a hot stick is to ________.

Answer:

Replace fuses Question 17: Circuit continuity is checked using the ______ function of a multimeter.

Answer:

ohmmeter

Question 18: The power in a circuit with 120 volts and 5 amps is _______.

Answer:

600 watts Question 19: In a parallel circuit, the voltage across each path is equal to the ____.

Answer:

Applied voltage

Question 20: In a parallel circuit, the total resistance is ______ the smallest resistance.

Answer:

less than

Question 21: Another term used for voltage is ________.

Answer:

Electromotive force (EMF) Question 22: A PFAs anchorage point for a 6-foot lanyard must be able to hold ______.

Answer:

5,000lbs Question 23: The voltage commonly supplied to a residence by the local utility is _______.

Answer:

240V Question 24: The most life-threatening hazards on a construction site typically include all the following

Answer:

Falls, Electric shock, being crushed or struck by falling or flying objects

Question 25: Low-voltage conductors rarely cause injuries.

Answer:

False

Question 26: The best way to protect yourself from solvent hazards is to

Answer:

read and follow all instructions on the products SDS/MSDS Question 27: What is the proper distance from the feet of a straight ladder to the wall?

Answer:

one-fourth the working height of the ladder